non-specific antigen ·VDRL、RPR、USR not specific for Treponemes the false- positive results occur in people with autoimmune disorders,certain viral infections,and other conditions. revert to negative once Ireponema eliminated useful to assess the efficacy of treatmentnon-specific antigen • VDRL、RPR、 USR - not specific for Treponemes - the false￾positive results occur in people with autoimmune disorders, certain viral infections, and other conditions. - revert to negative once Treponema eliminated - useful to assess the efficacy of treatment